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NTVS125-215 NTVS - 2-way control valves, DN15-150, kvs 0.4-310, DIN-standard
Pressure balanced 2-way valve intended for control of hot, cold or glycol-mixed water or district heating. Intended for use with the RVAN... actuators.
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Specificaties
Actuator connection | Standard for RVAN18.../RVAN25... actuators |
---|---|
Rangeability | 100:1 |
Stroke | 40 mm |
Nominal diameter | DN125 |
Kvs | 215 m³/h |
Max. diff. pressure | 1600 kPa |
Application | Heating, Cooling, District heating, District cooling |
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Pressure rating | PN16 |
Connection types | Flanged according to EN 1092-2 |
Flow characteristics | Equal percentage |
Leakage | 0.0 % of Kvs (PTFE gasket, carbon-filled 25 %, no leakage) |
Media | Hot water, Cold water, Glycol-mixed water (max. 50 % glycol) |
Closing direction | When stem is pushed inward |
Media temperature | -5…185 °C |
Body | Nodular (ductile) cast iron EN-GJS-500-7, EN-JS1050 |
Seat | Stainless steel 1.4301 |
Plug | Stainless steel 1.4305 |
Stem | Stainless steel 1.4305 |
Seat packing | PTFE (carbon filled 25 %) |
O-rings | Viton |
Stuffing box | Dezincification resistant brass CW511L |
Lining | Stainless steel 1.4301 |
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